045
FNCA52 TJSJ 101930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST WED JUN 10 2026
DISCUSSION
EXPECT A LOW FIRE WEATHER RISK ACROSS THE SOUTHERN SECTIONS OF
THE ISLANDS, AS BRIEF CONDITIONS WILL BE PRESENT.
PRZ014-110800-
SOUTHEAST COASTAL PLAINS-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 50 20 30
TEMP (24H TREND) 72 (-3) 91 (+2) 73 90
RH % (24H TREND) 86 (+3) 52 (+3) 93 51
WIND 20FT/EARLY(MPH) E 10 E 12 E 11 E 16
WIND 20FT/LATE(MPH) NE 8 SE 12 E 10 SE 16
MIXING HGT(FT-AGL/MSL) 4750 4610
TRANSPORT WND (MPH) E 10 SE 15
VENT RATE (KT-FT) 42750 59930
DISPERSION 5 5
DSI 2 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-110800-
SOUTHERN HILLS-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 70 10 20
TEMP (24H TREND) 69 (-3) 87 (+2) 69 87
RH % (24H TREND) 95 (+5) 61 (+1) 99 63
WIND 20FT/EARLY(MPH) E 8 E 9 E 11 E 12
WIND 20FT/LATE(MPH) E 6 SE 10 E 10 SE 12
MIXING HGT(FT-AGL/MSL) 5730 4960
TRANSPORT WND (MPH) E 9 SE 14
VENT RATE (KT-FT) 45840 59520
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-110800-
NORTH COASTAL PLAINS-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 70 30 50
TEMP (24H TREND) 72 (-3) 90 (+1) 72 91
RH % (24H TREND) 95 (+6) 61 (+2) 99 60
WIND 20FT/EARLY(MPH) E 11 E 10 SE 12 E 13
WIND 20FT/LATE(MPH) SE 8 E 13 SE 10 E 14
MIXING HGT(FT-AGL/MSL) 4700 4990
TRANSPORT WND (MPH) E 8 SE 12
VENT RATE (KT-FT) 32900 49900
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-110800-
NORTHERN HILLS-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 80 20 60
TEMP (24H TREND) 69 (-3) 88 (0) 70 90
RH % (24H TREND) 96 (+3) 61 (+2) 100 63
WIND 20FT/EARLY(MPH) E 9 E 9 SE 8 E 10
WIND 20FT/LATE(MPH) SE 6 E 10 SE 6 E 11
MIXING HGT(FT-AGL/MSL) 5800 5190
TRANSPORT WND (MPH) SE 6 SE 9
VENT RATE (KT-FT) 29000 41520
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-110800-
WEST COAST-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 60 30 40
TEMP (24H TREND) 72 (-1) 91 (+1) 73 91
RH % (24H TREND) 93 (+1) 59 (-1) 98 62
WIND 20FT/EARLY(MPH) E 10 E 10 E 10 E 13
WIND 20FT/LATE(MPH) E 9 E 11 E 12 SE 14
MIXING HGT(FT-AGL/MSL) 4510 4650
TRANSPORT WND (MPH) E 7 SE 13
VENT RATE (KT-FT) 27060 51150
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-110800-
EASTERN INTERIOR-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 70 20 40
TEMP (24H TREND) 70 (-3) 88 (+1) 71 88
RH % (24H TREND) 96 (+7) 64 (+6) 100 62
WIND 20FT/EARLY(MPH) SE 9 E 11 SE 13 E 13
WIND 20FT/LATE(MPH) SE 8 SE 11 SE 12 E 13
MIXING HGT(FT-AGL/MSL) 6100 5350
TRANSPORT WND (MPH) SE 10 SE 15
VENT RATE (KT-FT) 54900 69550
DISPERSION 5 5
DSI 2 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-110800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 20 60 40 50
TEMP (24H TREND) 68 (-3) 83 (+3) 69 83
RH % (24H TREND) 98 (+5) 70 (+4) 100 68
WIND 20FT/EARLY(MPH) E 8 E 10 SE 11 E 12
WIND 20FT/LATE(MPH) E 5 SE 10 SE 10 E 12
MIXING HGT(FT-AGL/MSL) 4100 4060
TRANSPORT WND (MPH) SE 13 SE 17
VENT RATE (KT-FT) 45100 60900
DISPERSION 5 5
DSI 2 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-110800-
CENTRAL MOUNTAIN RANGE-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 80 10 50
TEMP (24H TREND) 66 (-3) 87 (+4) 67 87
RH % (24H TREND) 96 (+2) 62 (-1) 100 66
WIND 20FT/EARLY(MPH) E 6 SE 6 SE 5 E 9
WIND 20FT/LATE(MPH) SE 5 SE 8 SE 6 SE 9
MIXING HGT(FT-AGL/MSL) 6940 5360
TRANSPORT WND (MPH) SE 7 SE 10
VENT RATE (KT-FT) 41640 48240
DISPERSION 5 5
DSI 1 5 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-110800-
CAYEY MOUNTAIN RANGE-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 70 20 40
TEMP (24H TREND) 69 (-1) 83 (+1) 70 83
RH % (24H TREND) 98 (+3) 70 (+8) 100 69
WIND 20FT/EARLY(MPH) E 6 E 9 SE 9 E 11
WIND 20FT/LATE(MPH) E 5 SE 9 E 9 E 11
MIXING HGT(FT-AGL/MSL) 5140 4690
TRANSPORT WND (MPH) SE 9 SE 15
VENT RATE (KT-FT) 41120 60970
DISPERSION 5 5
DSI 2 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-110800-
VIEQUES-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30 40
TEMP (24H TREND) 75 (-2) 88 (+1) 75 88
RH % (24H TREND) 89 (+7) 63 (+5) 93 62
WIND 20FT/EARLY(MPH) E 10 E 12 E 16 E 14
WIND 20FT/LATE(MPH) E 10 SE 11 E 16 E 14
MIXING HGT(FT-AGL/MSL) 3240 3210
TRANSPORT WND (MPH) E 13 SE 20
VENT RATE (KT-FT) 35640 54570
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-110800-
CULEBRA-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 30 40
TEMP (24H TREND) 76 (-1) 90 (+3) 77 90
RH % (24H TREND) 90 (+8) 60 (+1) 94 60
WIND 20FT/EARLY(MPH) E 10 E 12 E 16 E 14
WIND 20FT/LATE(MPH) E 11 SE 13 E 16 E 16
MIXING HGT(FT-AGL/MSL) 3230 3270
TRANSPORT WND (MPH) SE 16 E 18
VENT RATE (KT-FT) 45220 52320
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-110800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 20 10
TEMP (24H TREND) 74 (-1) 92 (+2) 74 91
RH % (24H TREND) 87 (+2) 51 (0) 94 49
WIND 20FT/EARLY(MPH) E 8 E 13 E 13 E 17
WIND 20FT/LATE(MPH) E 12 SE 16 E 16 SE 18
MIXING HGT(FT-AGL/MSL) 4730 4680
TRANSPORT WND (MPH) SE 13 SE 18
VENT RATE (KT-FT) 52030 74880
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-110800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 20 20
TEMP (24H TREND) 76 (-1) 86 (+1) 76 86
RH % (24H TREND) 91 (+11) 65 (+4) 93 65
WIND 20FT/EARLY(MPH) E 11 E 13 E 18 E 16
WIND 20FT/LATE(MPH) E 11 SE 13 E 18 E 16
MIXING HGT(FT-AGL/MSL) 3360 4110
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 47040 61650
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-110800-
ST CROIX-
330 PM AST WED JUN 10 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 20 20
TEMP (24H TREND) 75 (-1) 88 (+2) 76 88
RH % (24H TREND) 93 (+10) 65 (+3) 92 64
WIND 20FT/EARLY(MPH) E 11 E 14 E 16 E 17
WIND 20FT/LATE(MPH) E 13 SE 12 E 16 E 17
MIXING HGT(FT-AGL/MSL) 4480 4780
TRANSPORT WND (MPH) SE 15 SE 18
VENT RATE (KT-FT) 58240 76480
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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